104540565 has 32 divisors (see below), whose sum is σ = 186433920. Its totient is φ = 49711104.

The previous prime is 104540551. The next prime is 104540567. The reversal of 104540565 is 565045401.

It is not a de Polignac number, because 104540565 - 2⁷ = 104540437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104540567) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5944 + ... + 15633.

It is an arithmetic number, because the mean of its divisors is an integer number (5826060).

Almost surely, 2^104540565 is an apocalyptic number.

104540565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104540565 is a deficient number, since it is larger than the sum of its proper divisors (81893355).

104540565 is a wasteful number, since it uses less digits than its factorization.

104540565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21621.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 104540565 is about 10224.5080566255. The cubic root of 104540565 is about 471.0803050942.

Adding to 104540565 its reverse (565045401), we get a palindrome (669585966).

The spelling of 104540565 in words is "one hundred four million, five hundred forty thousand, five hundred sixty-five".